I have a 2004 50 hp johnson. this is a 2 stroke. When i have it hooked up to the ears and throttle it in forward the engine races and I have to choke it out to make it stop.
Make (of engine): johnson
Model (of engine): 2 stroke
rebuilt carbs and put in fresh fuel with ethanol treatment
Welcome,this question may need more than a single answer. Please post back with additional questions on this at any time.First of all please don't raise the throttle in neutral or on a flushing devise. The engine must be in the water, in gear. When it is in the water you have backpressure on the exhaust and a load on the engine. What you are finding is a "runaway" condition when there is no load on the engine.You should never operate the engine above about 2000 to 2500 rpm max. out of the water.The problem is not necessarily with the engine.Please let me know if you have additional questions on this.Thanks
35 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance
is the runaway normal when out of water and reving enging
Not uncommon if the engine is reved up too high. It doesn't happen to every engine. It usually happens at wide open throttle and the throttle held there for a few seconds or more. You also take a chance of seriously damaging the engine itself. It can be caused by the stop circuit no longer being effective or a hot spot in the cylinder.